Charging apparatus for open-hearth furnaces and the like.



J. A..SWINDELL. CHARGING APPARATUS FOR OPEN HBARTH FURNACES AND THE LIKE.

APPLICATION FILED JULY 10 1913- Patented Aug. 11, 1914.

3 SHEETS-SHEET l.

Z NN

WITNESSES ms MORRIS PETERS 1:01. PHOTO-Linn). WASHING mm D. l:

J. A. SWINDELL. CHARGING APPARATUS FOR OPEN HEARTH FURNACES AND THE LIKE.

APPLICATION FILED JULY 10. 1913.

Patented Aug. 11, 1914 3SHEETSSHEET Z.

INVENTOR WITN ESSES THE NORRIS PE TERS 60.. PHOTO LI 7H0 Mummy-010m u J. A. SWINDELL. CHARGING APPARATUS FOR OPEN HEARTH FURNACES AND THE LIKE.

, APPLIOATION IILBD-JULY10,1913. 1,1 06,988.

Patented Aug. 11, 1914,

3 SHEETS-SHEET 3.

mvsm-on h 1w 4 N mwn'nssszs JOHN ALBERT swINDELL, or PITTSBURGH, PENNsYIivANIA,

CHARGING APPARATUS roe OPEN-HEARTH rURNAonsANn THE LIKE.

Specification of Letters Patent. Patented Aug. 11,1914.

Application filed July 10, 1913. Serial No. 798,308.

To all whom it may concern Be it known that I, JOHN ALBERT SWiN- DELL, a citizen of the United States, residing at Pittsburgh, Allegheny county, State of Pennsylvania, have invented a new and useful Improvement in Charging Apparatus for Open-Hearth Furnaces and the like, of. which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a view partly in side elevation and partly in section of charging apparatus involving my invention; Fig. 2 is an enlarged section of a portion of the apparatus, partially broken away, and showing more particularly the manner in which the longitudinal rod engages the charging box and has its bearing on the sleeve member; Fig. 3 is a detail view, in verticalsection, showing the manner in which the sleeve member engages the guide rollers; Fig. 4 is a side elevation of a modified form of the invention; Fig. 5 is a perspective view of a portion of a charging box; Fig. 6 is a side view showing another modification; Fig. 7 is a section on the line VII-VII of Fig. 6; and Fig. 8 is a detail view showing another modification.

My invention has relation to apparatus for charging open hearth furnaces and the like, and is designed to provide apparatus of this character which is of extremely simple and convenient form.

The nature of my invention will be best understood by reference to the accompanying drawings, in which I have shown three embodiments thereof and which will now be described, it being premised, however, that various changes may beniade in the details of construction and arrangement of the parts, without departing from the spirit and scope of my invention as defined in the appended claims.

Referring first to that form of myinventhe head of the rail 3 farthest fromthe furnaee and thus prevent tipping or tilting of the car. This hookmember has a counterweighted lever arm 26, which acts to hold the hook either engaged with or disengaged from the rail.

If desired, the rail 3 may be provided with openings through its web to be engaged by this hook, as shown in Fig. 8. By locating theseopenings at the proper points with respect to the furnaces, the carriage can be held in exactly the right'position with respect to the furnace doors while The numeral 5 designates a double acting power cylinder supported on the car or buggyand having supply and exhaust con- .nections'G with any suitable source of power.

7 designatesa control valve for these connections. 1 1 r d 8 is an elongated sleeve or hollow tube which extends longitudinally through the power cylinder 5, and which has a piston 9 secured thereto within the said cylinder.

10 is a rod which extends loosely through the sleeve 8 and which carries at one end a hand wheel or other manipulating device 11. At its other end, it is adapted to enter a recess 12, formed in the end of a charging box13. Secured to this end of the rod. is

a flanged head 14:, which is adapted to engage the slottedand recessed lug 15, on the end of the charging box around the recess 12. This head is shown as having a pin, and slot connection 14: with the rod 10, to thereby permit of someendwise movement of the rod relatively to the head. This .head is also rotatably mounted on the end portion of the sleeve 8, suitable antifriction bearings 16 being preferably provided. Inorder to support the rod 10 centrally within the sleeve 8 and to provide for its free rotation, it may be mounted on suitable roller bearings 17, within the. sleeve. In the drawings, I have shown oneset of thesebearings within each endportion of the sleeve (Fig. 2). The sleeve is shown as guided and supported at the rear ofthe cylinder 5 by the two rollers 18, betweenwhich it passes, and in ifront of the cylinder, "it is shown as guided andsupported by a roller19. These rollers are carried on the car or buggy 2. t Y The operation is as follows: The head 14: is first engaged with the slotted and recessed lug 15,'after which the rod 10 is moved endwise slightly, so that its end will enter the recess 12. 'Thisis for. the purpose of giving 'a more effective initial leverage upon the der 5 behind the piston 9, thereby forcing the sleeve 8 forwardly. Inasmuch 'as the forward end of this sleeve contacts with the head l e-the box will, of course, be pushed forwardly into the furnace. shaft 10 is then rotated to dump the box. Power'is then admitted to the opposite end of the cylinder to retract the box.

I In the modification shown in Fig. 4, I provide means whereby the charging box may be raised and lowered as well as moved forwardly and backwardly. For this purpose, IInount the cylinder 5 together with the supporting" and guiding rollers 18 and 19*" for the sleeve 8 on a suitable frame 20, which is" pivoted at its rear end at 21 to the "frame of the ear or buggy 2 The forward end of the frame 20 is adjustably supported on the car 2* in any suitable manner, as by means of the adjusting screw 22. By adjusting this screw, the motor, sleeve 8 and rod or shaft 10 can be adjusted to any desired angle of inclination. In other respects, the construction and mode of operation is the same as in the form first described.

In Figs. 6 and 7, I have shown a modification in which, instead of a power cylinder for reciprocating the sleeve 8 I employ a reversible electric motor24. This motor is suitably geared to ar ack 25 on said sleeve. The apparatus is otherwise substantially the same as in Fig. 1 and corresponding refer ence' characters are used for corresponding partswitli the letter 6 applied.

The advantages of my invention will be apparent, since it provides a very simple, in

expensive and convenient form of charging apparatus which can be operated with the expenditure of very little power. Practically the entire weight of the load of the charging box is carried on the sleeve 8 or 8*, and is then directly transmitted to the frame of the car or bugg the rod or shaft 10 or 10*Ybeing relieved of the load and simply providing means whereby the box may be rotated for dumping it.

Instead of the hand wheel 11 or 11 for manipulating the rod or shaft 10 or 10 1 may provide any other suitable means; any suitable motormay be provided for reciproeating the sleeve and that various other changes maybe made in the apparatus within the scope of the appended claims.

I claim:

' 1. Furnace charging apparatus comprising a movable car or buggy, a power cylinder mounted thereon, a non-rotatable hollow sleeve or tube extending through said cylinder and carrying a piston within the cylinder, and a rod or shaft extending through Cdpies of this patent may be obtained for The rod or the sleeve or tube and rotatable therein, said rod or shaft having means at its forward end for engaging and turning a charging box, substantially as described.

. 2. Furnace charging apparatus comprising a car or bugg a double-acting power cylinder mounted thereon, a hollow sleeve or tube extending longitudinally through the cylinder and carrying a piston therein, a rod or shaft rotatably mounted within and extending through said sleeve or tube, and a box-engaging member secured to the forward end of said shaft and having a rotating bearing on the forward end portion of the sleeve or tube, substantially as described.

3. Furnace charging apparatus comprising a movable car or buggy, a power cylinder mounted thereon, a hollow sleeve or tube extending through said cylinder and carrying a piston within the cylinder, and a rod or shaft extending through the sleeve or tube and rotatable therein, said rod or shaft having means at its forward end for engaging a charging box, together with means whereby the angle of the tube or sleeve and the rod or shaft may be changed, substantially as described.

4. Furnace charging apparatus comprising a car or buggy, a frame member pivoted thereon, means for effecting a vertical adjustment of the frame member, a power eylinder mounted on the frame member, a sleeve or tube extending through said cylinder and carrying a piston therein, a rod or shaft extending through the sleeve or tube and rotatable therein, and means on said rod or shaft for engaging a charging box, substantially as described.

5. Furnace charging apparatus, eomprising a hollow longitudinally reciproeable non-rotatable sleeve, motive means for reciprocating said sleeve, a rod extending through said sleeve and rotatable therein, and means on the rod for engaging a charging box, substantially as described.

(SJFurnace charging apparatus, comprising a hollow longitudinally reciprocable non-rotatable sleeve, motive means for reeiprocating said sleeve, a rod extending through said sleeve and rotatable therein, and means on the rod for engaging a charging box, said means also having a rotatable supporting bearing on the sleeve, substantially as described.

In testimony whereof, I have hereunto Set my hand.

7 JOHN ALBERT SVVINDELL. Witnesses GEO. H. PARMELEE, H. M. CoRwIN.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

